How many insulation & weatherization contractors are in CORONA, CA?

9 with a current California license, as of 2026-08-31.

How do I check a California contractor license is current?

Every listing shows its state license number and expiry date. Verify any of them directly against the California CSLB licensee database.

Insulation & Weatherization contractors in CORONA, CA

9 listings

Source: California CSLB license records. Last verified 2026-08-31.

There are 9 insulation & weatherization contractors in CORONA, California with a current state license as of 2026-08-31. The earliest license expiry among them is 2026-10-31; every listing shows its own number and expiry date. All are drawn from the California CSLB register; expired and inactive licenses are excluded.

Business	License	Type	Expires	City	Zip
A Q H I INC	715954	ASB, C-2, C-22	2027-12-31	CORONA	92881	Set up workspace
COUTS HEATING & COOLING INC	375584	B, C-2, C-4, C-20, C-36, C-38, C-43	2027-05-31	CORONA	92883	Set up workspace
EXCEL ACOUSTICS INC	724511	C-2, D50	2028-01-31	CORONA	92878	Set up workspace
PREFERRED FIRESTOPPING INC	965711	C-2, C-21, D12, D64	2027-09-30	CORONA	92878	Set up workspace
PREFERRED INSULATION CONTRACTORS INC	824373	C-2, D12, D64	2027-09-30	CORONA	92878	Set up workspace
PREMIER ACOUSTICS INC	949939	C-2	2027-12-31	CORONA	92881	Set up workspace
RESTO BROS PLUMBING & RESTORATION	1097850	A, ASB, B, C-2, C-36, C-57	2026-10-31	CORONA	92883	Set up workspace
S & S COMMERCIAL ENVIRONMENTAL SERVICES INC	738979	A, ASB, B, C-2, C-36, C-57, HAZ	2027-08-31	CORONA	92883	Set up workspace
WEST COAST INSULATION	774147	C-2	2028-01-31	CORONA	92881	Set up workspace

Quick answers

How many insulation & weatherization contractors are in CORONA?: 9 with a current California license, as of 2026-08-31.
How do I check a license is current?: Every listing shows its state license number and expiry. Verify any of them directly against the California CSLB licensee database.